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Self-threading polymeric fastener
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Patent number 4,658,088
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Issue date Apr 14, 1987
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Harvey Hubbell Incorporated
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Albert J. Gartland
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Screw retaining and aligning cover plate
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Patent number 4,355,198
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Issue date Oct 19, 1982
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Harvey Hubbell Incorporated
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Albert J. Gartland
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Contact spring
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Patent number 3,945,710
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Issue date Mar 23, 1976
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Harvey Hubbell, Incorporated
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Albert J. Gartland
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H01 - BASIC ELECTRIC ELEMENTS